gilmoue



.(No Model.) I

"A. REWRICKU J. D. GILMUR.

Scrapers.

No. 231,850. Patented Aug'. 31;?1880.

MLFEIEHS, PHOTO LIYl-DGRAP UNITED STATES PATENT OFFICE.

ASSARIA REWRICK AND JOHN D. GILMOUR, OF SAN FRANCISCO, CAL.

SCRAPER.

SPECIFICATION forming part of Letters Patent No. 231,850, dated August 31, 1880. Application nieu June 3, reso. (No model.)

To all whom tt may concern:

Be it known that we, AssARIA REWRICK and J oHN D. G1LMoUE,of the city and county of San Francisco, and State of California, have invented an Improvement in Scrapers; and we hereby declare the following to be a full, clear, and exact description thereof.

Our invention relates to a novel construction for Scrapers such as are used for ships7 bottoms, meat-blocks, trees, 85e.; Iand it consists in the formation of the socket and method of fastening, asis more fully described in the accompanying drawings, in which- Figure l is a perspective vien'. longitudinal section.

The scraper' A is formed in a cu p-shaped triangular form, as shown. It is made by means of a die in which it is struck up, and this form gives the greatest strengthwith a minimum of metal. By this construction we are enabled to make our scrapers of much lighter metal than has heretofore been needed to resist the spring, and we can also grind them and keep them sharp with but little trouble or expenditure of ti1ne. With the ordinary scraper, when it becomes alittle worn the beveled edge, which has to be sharpened, becomes very broad, and as the whole bulk of this edge must be ground down uniformly,considerable grinding is necessary.

With our improved form the inner edge is of the same width, whether the tool is new or old, and owing to the cup-shaped form there is no more inet-a1 at one point than another. Moreover, with the hollow back the tool can be held on the grindstone more conveniently in sharpening. Y

Fig. 2 is a The socket is formed of three pieces or sections of a tube, B B, as shown. These sections have their ends set into a hole, C, in a triangular block of met-al, D, and a central tapering plug, E,is then driven between them, so as to force them outwardly against the sides of the block. The scraper has a hole in the center, and the end of the tapering plug eX- tends out through this hole, so that the triangular block rests in the interior of the cupshaped scraper, while the end of the plug, having screw-threads cut upon it, receives a nut which draws the whole firmly together. The socket, which is formed of the three sections of a tube, projects inwardly and receives the handle.

By this construction we are enabled to form a scraper which is sti", light, easilykept sharp, and will never become loose in the handle.

Having thus described our invention, what we claim as new, and'desire to secure by Letters Patent, is-

In combination with the scraper A, the socket formed of the tube-sections B B, with the block D, and threaded tapering plug E, whereby the scraper is rigidly secured to the handle, substantially as and for the purpose herein described.

In witness whereof we have hereunto set our hands.

ASSARIA REWRICK. JOHN D. GILMOUB..

Witnesses:

S. H. N oURsE, FRANK A. BROOKS. 

